Derrick.



PATBNTED DEG. l0, 1907. E. B. JJFJNKINS.-v

DERRVIGK., PPLIOATION FILED FEB. 25, 1907.

2 SHEETS-SHEET 1.

THE Immers P a wAsmNa-mn. n, c.

PATENTBD DEC. 10,1907.

E. E. JENKINS.

DERRIUK- APPLICATION FILED FEB. z5, 1907.

2 SHEBTSJHBBT 2,

Ingenio# EDWIN ELLIOTT JENKINS, OF VILLISCA, IOWA.

DERRICK.

i No. 873,374.

Speccaton of Letters Patent.

Patented Dec. 10, 1907.

Application filed February 25. 1907. Serial No. 359,049.

To all whom 'llt may concern:

Be it known that I, EDWIN ELLIOTT JENA KINs, a citizen of the United States, residin at Villisca, in the county of Montgomery an State of Iowa, have invented a certain new and useful Derrick, of which the following is a specification.

The objects of my invention are to provide a device for assisting in the erection of wind-mills, designed to be placed upon the platform and near the top of the wind-mill, and secured to the frame-work of the tower in such a way that the wind-wheel and guiding fan and other heavy parts may be drawn from the ground and easily placed inposition at the top of the windmill tower.

A further object is to provide a derrick to which there is secured a mechanism for raising the heavy parts of it to position after the main upright of the derrick has been placed in position.

My invention consists in certain details in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my' claims and illustrated in the accompanying drawings, in whichd Figure 1 is an elevation of my derrick, showing the way in which it is secured to the wind-mill tower. Fig. 2 is a detail elevation of the'upper portion of the main upright showing the mechanism for raising the vsupporting arms to position at the upper portion thereof. Fig. 3 is a detail plan view of the windlass for operating the rope which passes over the supporting arms, and the mechanism for securing the main upright in position relative to the tower. Fig. 4 is a detail view of the flanged socket designed to receive the lower end of the main upright and the plank to which it is secured. Fig. 5 is a detail view of one end of the supporting arm, showing the pulley mounted therein. Fig' is a detail, perspective view of the adjustable rod, designed to be secured to the main upright for supporting it in position relative to the tower. Fig. 7 is a detail view, in cross section, of the rod for supporting the upright, showing the clamping mechanism in elevation for maintaining it in position relative to the socket into which it is inserted. Fig. 8 is a longitudinal, sectional view, showing the manner in which the derrick head is mounted upon the main upright.

Referring to the accompanying drawings'7 Ijhave used the reference numeral 10 to indicate the uprights of the wind-mill tower, having the plate 11 connecting the upper ends, designed to support the wind wheel frame.

Secured to the uprights 10, and surroundingfit is the ordinary platform 12. I have provided a plank 13 having the flanged socket 14 rigidly secured to it by means of screws. The plank 13 is also designed to be rigidly secured to the platform 12, if desirable, by means of screws.

I have provided an upright 15 which has its lower end placed in the socket 14. This upright is adjustably secured in a substantially vertical position by means of an adjustable rod 16 which is slidingly mounted in a slotted socket 17. The socket 17 has a clamp 18 at its outer end designed to maintain the adjustable rod at various positions of adjustment. to the socket 17 is a cross head 19 whic is mounted in the clamps 20 and 21, which, in turn, are secured by means of hooked bolts 22 and 23 to two of the posts of the windmill in such a way that the cross head can be At substantially right an les adjusted to allow the socket 17 to be moved laterally, and also in a vertical plane to secure the desired angle of adjustment for the adjustable rod 16.

I have connected the ends of the cross v head 19 by means of the braces 19a with the clamp 18 to rigidly support the cross head in A position relative to t e socket. The outer end of the adjustable rod is substantially U-shaped and forms a receiving member 24, which is designed to receive an upright 15. There is a locking hook 25 designed to retain the upright 15 within the retaining member 24 when in a closed position. W en in an open position the upright may be removed from the retaining member 24.

Extending transversely of the upright 15 and a slight distance below its upper end is a cross pm 26. Rotatably mounted on the upper end of the upright 15 is a pulley support comprising a rod 27 having two collars 28 and 29 at their lower ends which are designed to slp over the upper end of the upright 15 an the lower collar 29 of which is designed to engage the pin 26. Thus it will be seen that the support canbe swung on the upper end of the u right 15.

The upper end o the rod 27 is curved at 30 to form a recess for thel pulley 31, which is supported from the upper end of the part 3() by means of the pulley support 32. Passing over the pulley 31 is a rope 33 having a hook 34 at one end of it. rIhis rope is of suiiicient length to allow the hook to be attached to parts of the device to be elevated after the upright has been placed in position on the top of the wind-mill.

Designed to be mounted on top of the upright 15 is the derrick head, comprising the socket 35 and the pulley supporting arms 36 and 37 extending in line with each other, and

.substantially at right angles to the socket 35.

the frame. In the pulley frame 40 there is a pulley 41.

I have provided a pulley frame 42 at the outer end of the supporting arm 37 similar in construction to the pulley frame 4() and have mounted a pulley 43 therein.

Rigidly secured to the upright 15 and some distance above the lower end. of it are two collars 44 and 45 which are some little distance apart, and between which I have detachably and rotatably mounted a windlass supporting frame 46. This frame has two arms 47 and 48 extending` outwardly from it, through the ends of which extends a shaft 49 on which the drum 50 is mounted. Secured to one end of the drum is a gear 51 which is in mesh with the gear 52 mounted on the crank shaft 53, which shaft is designed to be l rotated by means of the crank 54 to wind or unwind the drum 50. Pivoted to the windlass bearing frame is a pawl 55 which is designed to engage the teeth of the gear 52 and prevent its rotation except in one direction, when thepawl is in engagement with said wheel.

The drum 50, the shafts 49 and 53, the gears 51 and 52, the crank 54 and the pawl 55 form my windlass for operating the rope 56, which is secured to the drum 50 and passes over the pulley 41 and 43, and the pieces of machinery which are secured to the other end of said rope 56 by means of the hook 57.

In practical use and assuming that the tower, as shown in the drawings, has been erected, and it is desired to put up the remalnder of the wind-mill, the plank 13 is secured to the platform 12 after securing the socket 14 to the plank. The operator next secures the pulley support and its attach.

ments to the top of the upright 15 and places the lower end of the upright 15 in the socket andsecures the upright 15 to the tower at the desired angle by means of the clamping mechanism. IIe then secures the windlass by means of its franie to the upright and then attaches the hook 34 to a loop 56 at the upper central portion of the derrick head and draws the derrick head, together with its attachments, to its position at the upper end of the upright 15. The windlass and derrick head are then used for drawing` the fan of the wind-mill and the other parts placed at the vupper end of it to position where they can be easily placed by the operator.

By the construction shown, all elI the parts can be easily placed in position, and when the work has been completed, the derrick can be easily taken down by reversing the operation.

Having thus described my invention, what I claim and desire to secure by Letters Paient of the United States, therel'or isz-4 1. In a wind-mill derrick, an upright, means for supporting the upright on the platform of a wind-mill in position relative to the tower thereof, a derrick head at the. upper end of the upright, pulleys in the derrick head, and a rope passed over the pulleys.

2. In a wind -mill derrick, an upright, means for supporting the upright on the platform of a wind-mill in position relative to the tower thereof, a rotatably mounted derrick head at the upper end of the upright, pulleys in the derrick head, and a rope passed over the pulleys.

3. In a wind-mill derrick, an upright, means for adjustably supporting the upright on the platform of a wind-mill in position relative to the tower thereof, a derrick head at the upper end of the upright, pulleys in the derrick head, and a rope passed over the pulleys.

4. In a wind -mill derrick, an upright, means for adjustably supporting the upright on the platform of a wind-mill in position relative to the tower thereof, a rotatably mounted derrick head at the upper end of the upright, pulleys in the derrick head, and a rope passed over the pulleys.

5. In a wind-mill derrick, an upright, means for supporting the upright on the platform of a wind-'mill in position relative to the tower thereof, a derrick head at the upper end of the upright, pulleys in the derrick head, a rope passed over the pulleys, and a windlass secured to the upright and. the rope.

G, In a wind-mill derrick, an upright, means for supporting the upright on the platform of a wind-mill in position relative to the tower thereof, a rotatably mounted derrick head at the upper end of the upright, pulleys in the derrick head, a rope passed over the pulleys, and a windlass secured to the upright and the rope.

7. In a wind-mill derrick, means for adjustably supporting on the platform of a wind-mill an upright, the upright 1n position relative to the tower thereof, a derrick head at the upper end of the upright, pulleys in the derrick head, a rope passed over the pulleys, and a windlass secured to the upright and the rope. s

8. In a wind-mill derrick, an` upright, means for adjustably supporting the upright on the platform of a Wind-mill in position relative to the tower thereof, a rotatably mounted derrick head at the upper end of the upright, pulleys in the derrick head, a rope passed over the pulleys, and a windlass secured to the u right and the rope.

9. In a win -mill derrick, an upright, means for supporting the upright on the platform of a Wind-mill in position relative to the tower thereof, a derrick head at the up er end of the upright, pulleys in the derric head, a rope passed over the pulleys, and meanssecured to the upright for raising the derrick head to its position at the top of the upright.

10. In a wind-mill derrick, an upright, means for adjustably supporting the upright on the platform of a wind-mill in position relative to the tower thereof, a rotatably mounted derrick head at the upper end of the upright, pulleys in the derrick head, a rope passed over the pulleys, and rotatable means secured to the upright for raising the derrick head to its position at the top of the upright.

11. In a Wind-mill derrick, a socket designed to be secured to the platform of a wind-mill, an upright designed to enter said socket, means secured to the tower of a Wind-mill for adjustably supporting the upright in a substantially vertical position, a rotatably mounted derrick head at the top of the upright, rotatably mounted means secured to the upright for elevating the derrick head to its position at the top of the upright, pulleys in the derrick head, and a rope passing over the pulleys of the derrick head, for the purposes stated.

12. In a wind-mill derrick, a socket designed to be secured to the latform of a wind-mill, an upright designe to enter said socket, means secured tothe tower of a windmill for adjustably supporting the upright in a substantially vertical position, a rotatably mounted derrick head at the top of the upright, rotatably mounted means secured to the upright for elevating the derrick head to its position at the to of the upright, pulleys in the derrick hea a rope passing over the pulleys of the derrick h ead, and a windlass mounted on the upright and connected with one end of the-rope, for the purposes stated. f

13. In a wind-mill derrick, a socket designed to be secured to the platform of a wind-mill, an upright designed to enter said socket, means secured to the tower of a Windmill for adjustably supporting the upright in a substantially vertical position, a rotatably mounted derrick head at the top of the upright, rotatably mounted means secured to the upright for elevating the derrick head to its position at the top of the upright, pulleys in the derrick head, a rope passing over the pulleys of the derrick head, and a swinging windlass mounted on the upright and connected with one end of the rope, for the purposes stated. I

14. In a device of the class described, an

upright, a rotatable derrick head at the upper end of the upright, pulleys in said derrick head, a rope passing over said pulleys, and a swinging windlass mounted on the upright and connected with said rope.

Des Moines, Iowa, Feb. 13, 1907.

EDWIN ELLIOTT JENKINS. Witnesses:

E. C. VOILAND, JOHN KEER. 

